Scrape the corn kernels into a bowl. Place the cobs and herb bundle in a pot with the stock and add about 3 cups of water, then bring to a low simmer.
In another pot, heat the oil over medium-high heat, add the bacon and cook to render the fat. Add the garlic, onions and bay leaf, then cook to very tender, stirring frequently, 10 minutes. Add the corn kernels and stir in the chipotle puree.
Ladle 1 cup of the hot stock over the masa, stir and let stand to thicken.
Remove the cobs and herb bundle from the corn stock and add it to the soup pot. Stir in the thickened masa paste, cream and green chiles. Add the Buttermilk Brined Turkey Breast and bring the soup to a bubble. Cook to thicken to your desired consistency, then season with salt and pepper.
For extra thick chowder, puree half of the corn kernels before adding to the soup.
Place the buttermilk, Sriracha, salt, peppercorns, garlic, lemon, chives, dill and parsley in a double-bagged 2 1/2-gallon plastic resealable bag. Add the turkey breasts and refrigerate on the bottom shelf of the fridge overnight.
Preheat the oven to 325 degrees F.
Arrange a metal rack over or in a rimmed baking sheet and rub the rack with oil. Remove the turkey breasts from the brine and pat them dry. Arrange the breasts on the prepared baking rack and coat the skin with a little oil, sprinkle with poultry seasoning and cook until a thermometer reads 165 degrees F and the skin is light to medium golden brown, 45 minutes to 1 hour.